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authorRichard Henderson <rth@twiddle.net>2012-12-07 15:07:17 -0600
committerBlue Swirl <blauwirbel@gmail.com>2012-12-29 12:14:07 +0000
commitafcb92beac9e477e5ae5c36bf38830e225e2235f (patch)
tree347011705ab00eeda30ba3f03f99ccedcc878707 /tcg/tcg.h
parent927fa909d5d5cf8c07673cd16a6d3bdc81250bc0 (diff)
tcg: Add TCGV_IS_UNUSED_*
Cc: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Diffstat (limited to 'tcg/tcg.h')
-rw-r--r--tcg/tcg.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/tcg/tcg.h b/tcg/tcg.h
index b2e2a25653..a4279725a6 100644
--- a/tcg/tcg.h
+++ b/tcg/tcg.h
@@ -270,6 +270,9 @@ typedef int TCGv_i64;
#define TCGV_UNUSED_I32(x) x = MAKE_TCGV_I32(-1)
#define TCGV_UNUSED_I64(x) x = MAKE_TCGV_I64(-1)
+#define TCGV_IS_UNUSED_I32(x) (GET_TCGV_I32(x) == -1)
+#define TCGV_IS_UNUSED_I64(x) (GET_TCGV_I64(x) == -1)
+
/* call flags */
/* Helper does not read globals (either directly or through an exception). It
implies TCG_CALL_NO_WRITE_GLOBALS. */